CVE-2016-9846

Name: CVE-2016-9846
Creator: NVD / NIST
Published: 2016-12-29T22:59:00.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2016-9846 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

0.42%

33.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions	Update
Qemu	Qemu	<= 2.7.1	—
Qemu	Qemu	2.8.0	Rc0

References

http://www.openwall.com/lists/oss-security/2016/12/05/18Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/05/23Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94765Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/201701-49Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/05/18Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/05/23Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/94765Third Party Advisory, VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.htmlPatch, Vendor Advisory
https://security.gentoo.org/glsa/201701-49Third Party Advisory

Timeline

Published: Dec 29, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-9846?

How severe is CVE-2016-9846?

CVE-2016-9846 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2016-9846?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9846?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST